Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd4b0706e979032…

MALICIOUS

PDF

35.5 KB Created: 2021-06-25 13:18:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: b6a6ed0b497724b3080c8b05186b806f SHA-1: 7fa3a9f7344c04c159e24601c1d992b966b313de SHA-256: 3fd4b0706e9790324e724862929305235b2d295fa821b3346af86c18e100e314
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector, under the guise of offering 'free spins' or 'hacks' for games like Coin Master and Roblox. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to redirect users to potentially malicious content. No scripts were extracted, but the presence of numerous redirector links indicates a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/406889139/coin-master-free-spins-for-today-game-hack In PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-hack-november-2021-no-wait_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/hack-de-roblox-traspasar-paredes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-make-a-shirt-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-hack-roblox-for-admin-commands_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/play-this-game-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/fre-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/jeux-paintball-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/money-money-roblox-free-catalog_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-black-jacket-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-promocodes-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-free-no-sign-up-no-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/como-tener-robux-gratis-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-hack-btools-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/hacker-contaiment-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34FA 22696 bytes
SHA-256: 89292bcc8f0e025d4990470fb0f0c8eea6786cdae475a5b2877f120f273702af
font_01_sfnt_off0000676e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676E 18528 bytes
SHA-256: 611292c7b78d9aef83f236a5f61e8588922333099173db31565d3b831f2ee55a

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